Disc brake conversion wheel hub sizing

I have a 67 Barracuda. It has the 10 inch drums front and back. I'm looking at all the options out the to convert to a disc setup. Wilwood, Scarebird, Dr. Diff, Piratejack, oem 73+...omg

I have aftermarket steel wheels with a hub size of 2 3/8.
Do any of the kits going to disc allow for such a small hub size opening?

I really rather not go to the bigger anything because I just got done doing uca offset bushings, lca bushings, new upper and lower ball joints (and more, new t-bars and sway bar). Just got done meaning the car is still on the lift with the brand new parts I just installed. Plus my wheels look good and tires are new.